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The pH scale is called a log scale because each unit increases or decreases logarithmically. What this means is that if you were to go from a pH of 7 to a pH of 8 you have increased your concentration of -OH ions ten fold or from a pH of 7 to a pH of 9 would be a 100 fold increase of -OH concentration. Incidentally, pH refers to a mathematical equation where p is the inverse log of H+ (acid/protons) concentration in solition. Thus we are measuring the inverse log concentration of H+ ions or simply put: pH.
The equation looks like the following: pH = -log[H+]
What else can I help you with?
Why is the graph of log against pH a straight line?
pH is a logarithmic scale; because of the way calculus and maths works, graphing such a scale against a log results in a straight line.
How are logarithms used in our society?
Many scales such as sound and PH are log scales. The scale used to measure earthquakes is also a log scale. Whenever the data has a very wide range, a log scale might help.
How are pH and logarithm related?
pH is a logarithmic scale used to specify the acidity or basicity of a solution. The pH scale ranges from 0 to 14, with lower values indicating acidity and higher values indicating basicity. pH = -log[H+], where [H+] is the concentration of hydrogen ions in the solution.
What makes up PH scale?
The Ph scale doesn't have units it's a model to show where solutions rank based on the -Log of the concentration of H+ ions
What is the brightness of a star measurable by a scale called?
It is called the magnitude scale. It is a log scale.
Because the pH scale is an inverse log of the hydrogen ion concentration what numbers from the pH scale would be more basic?
pH above 7 till 14 is basic. pH of 14 is most basic
Why is a pH scale called a pH scale?
The pH scale is a scale to express the acidity of aqueous solutions (i.e. anything dissolved in water). The scale is divided in equi-distantial units with decimals, comparable with temperature or pressure scales. Commonly it goes from 0 - 14, with 7 being neutral. pH stands for parts of hydrogen. It is the negative log of the hydrogen ion concentration.
What ions do the pH scale measure?
H is for Hydrogen. p[H] is a messurement for Hydrogen-ion koncentration and pH for the activity to be correct. the p is for the -log called anti-log (log=logarithm) meaning the exponent (number of the potense) of H ions. pH = -log [H+] or [H+] = 10-pH
Why is zero the lowest number on the pH scale?
Well...zero isn't really the lowest number on the pH scale. To simplify things, we teach kids that the scale goes from 0-14, but in reality, a solution can have a negative pH. The pH is the negative log of the hydrogen concentration or -log[H+]. So for -log[H+] to be negative, log[H+] has to be positive; therefore, [H+] would have to be greater than one. A solution that has a negative pH is extremely acidic! For example, a solution with a hydrogen concentration of 2.2 M would have a pH of -log[2.2] = -0.342 The reason we use 0-14 in abstraction is because pH + pOH = 14
Is the potential hydrogen scale also called a pH scale?
Yes it is.
If solution a has a pH of 5 and solution b has 100 times the hydrogen ion concentration of solution A what is the pH of solution B?
The pH of solution b would be 3. This is because the pH scale is a logarithmic scale, so solution b would have a pH that is 2 units lower than solution a, since it has 100 times the hydrogen ion concentration.
Is a scale that measures the acidity or basicity of a solution along a range of zero to 14.?
pH
